Black holes and topological vortices in a discrete spacetime lattice.
This is not an animation.
I created a simulation where particle stability is maintained by internal field tension rather than hard coded rules. I didn't program any velocity increase the geometry itself is generating the motion.
#Topology
#Gravity
#blackholes
#nonlineardynamics
#Superfluid #Physics
#Simulation
#QuantumPhysics
#computationalphysics
#emergence
Black holes and topological vortices in a discrete spacetime lattice.
This is not an animation.
#Topology
#Gravity
#blackholes
#nonlineardynamics
#Superfluid #Physics
#Simulation
#QuantumPhysics
#computationalphysics
#Emergence
Watching Waves on the Nanoscale
It’s tough to simulate nonlinear wave dynamics, so scientists often test theories in wave flumes, where they can create more controlled waves than what we see in the wild. But conventional wave flumes are big–meters-long, complicated equipment–and can only test a small range of conditions. To reach more extreme nonlinear dynamics, researchers have turned to a chip-based approach. These 100-micron-long wave flumes carry a film of superfluid helium less than 7 nanometers thick. But despite that tiny size, the system can reach levels of nonlinearity five orders of magnitude greater than their full-sized counterparts. (Image and research credit: M. Reeves et al.; via Physics Today)
#fluidDynamics #microfluidics #nonlinearDynamics #physics #science #superfluid #waves
https://phys.org/news/2025-07-scientists-density-modes-component-fluid.html
"We study #quantumfluids of light, or in other words, optical systems where light behaves like a #superfluid, which are much like…#superconductors." Quentin Glorieux, "The goal…was to see whether it's possible to push this analogy further by creating a mixture of two interacting fluids of light. Mixtures…support rich collective dynamics and offer a new platform for the study of quantum phase transitions, topological structures or even analog gravity."
Recent physics studies have found that light can sometimes flow in unexpected ways, behaving like a so-called "superfluid." Superfluids, such as ultracold atomic gases or helium-4 below specific temperatures, are phases of matter characterized by flowing behavior with zero viscosity (i.e., with no resistance).
💾 Even if my #PhD is over, I'm still closing some projects I had begun with my former research group in #Warsaw.
In this one, we've studied #Superfluid currents across three regimes (from #BCS to #UFG) in the presence of an obstacle. If currents are too high, vortices appear in the ring.
I can't yet tell if #Atomtronic circuitry will be developed or practical, but this hints that wires with "spikes" inside might make the currents more stable.
Massive black holes drag and warp the spacetime around them in extreme ways. Observing these effects firsthand is practically impossible, so physicists look for laboratory-sized analogs that behave similarly. Fluids offer one such avenue, since fluid dynamics mimics gravity if the fluid viscosity is low enough. To chase that near-zero viscosity, experimentalists turned to superfluid helium, a version of liquid helium near absolute zero that flows with virtually no viscosity. At these temperatures, vorticity in the helium shows up as quantized vortices. Normally, these tiny individual vortices repel one another, but a spinning propeller — much like the blades of a blender — draws tens of thousands of these vortices together into a giant quantum vortex.
Here superfluid helium whirls in a quantum vortex.With that much concentrated vorticity, the team saw interactions between waves and the vortex surface that directly mirrored those seen in black holes. In particular, they detail bound states and black-hole-like ringdown phenomena. Now that the apparatus is up and running, they hope to delve deeper into the mechanics of their faux-black holes. (Image credit: L. Solidoro; research credit: P. Švančara et al.; via Physics World)
https://fyfluiddynamics.com/2024/05/black-holes-in-a-blender/
#astrophysics #blackHole #fluidDynamics #physics #quantumVortex #science #superfluid #superfluidHelium #vortices #vorticity
Kis Norbert Levente
Kis Norbert Levente
Media Japan
Nicole Sharp
Steven Carneiro
rexi
Clockwork ☃️✒️
scinexx - das wissensmagazin
